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Overview
Comment:Fix a typo in capi3.tcl. (CVS 1784)
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SHA1: 982389b25d26201116fdfd390aa4b9964b5adf69
User & Date: danielk1977 2004-06-30 13:28:33.000
Context
2004-06-30
14:29
Specify ASCII versions of Win32 API functions. (CVS 1785) (check-in: 48b31540db user: drh tags: trunk)
13:28
Fix a typo in capi3.tcl. (CVS 1784) (check-in: 982389b25d user: danielk1977 tags: trunk)
12:49
Have the debug version of sqliteRealloc() return partially uninitialised memory in the same way as the non-debug version can. (CVS 1783) (check-in: e78b0ff30f user: danielk1977 tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to www/capi3.tcl. 
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set rcsid {$Id: capi3.tcl,v 1.5 2004/06/18 11:34:09 danielk1977 Exp $}
source common.tcl
header {C/C++ Interface For SQLite Version 3}
puts {
<h2>C/C++ Interface For SQLite Version 3</h2>

<h3>1.0 Overview</h3>


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set rcsid {$Id: capi3.tcl,v 1.6 2004/06/30 13:28:33 danielk1977 Exp $}
source common.tcl
header {C/C++ Interface For SQLite Version 3}
puts {
<h2>C/C++ Interface For SQLite Version 3</h2>

<h3>1.0 Overview</h3>
︙︙
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to refer to UTF-16 strings.  Client software can cast the void* 
to whatever datatype is appropriate for their system.
</p>

<h3>2.0 C/C++ Interface</h3>

<p>
The API for SQLite 3.0 three includes 83 separate functions in addition
to several data structures and #defines.  (A complete
<a href="capi3ref.html">API reference</a> is provided as a separate document.)
Fortunately, the interface is not nearly as complex as its size implies.
Simple programs can still make due with only 3 functions:
<a href="capi3ref.html#sqlite3_open">sqlite3_open()</a>,
<a href="capi3ref.html#sqlite3_exec">sqlite3_exec()</a>, and
<a href="capi3ref.html#sqlite3_close">sqlite3_close()</a>.
More control over the execution of the database engine is provided
using
<a href="capi3ref.html#sqlite3_prepare">sqlite3_prepare()</a>
to compile an SQLite statement into byte code and
<a href="capi3ref.html#sqlite3_prepare">sqlite3_step()</a>
to execute that bytecode.
A family of routines with names beginning with 
<a href="capi3ref.html#sqlite3_column_blob">sqlite3_column_</a>
is used to extract informatiom about the result set of a query.
Many interface functions come in pairs, with both a UTF-8 and
and UTF-16 version.  And there is a collection of routines
used to implement user-defined SQL functions and user-defined
text collating sequences.
</p>


<h4>2.1 Opening and closing a database</h4>









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to refer to UTF-16 strings.  Client software can cast the void* 
to whatever datatype is appropriate for their system.
</p>

<h3>2.0 C/C++ Interface</h3>

<p>
The API for SQLite 3.0 includes 83 separate functions in addition
to several data structures and #defines.  (A complete
<a href="capi3ref.html">API reference</a> is provided as a separate document.)
Fortunately, the interface is not nearly as complex as its size implies.
Simple programs can still make do with only 3 functions:
<a href="capi3ref.html#sqlite3_open">sqlite3_open()</a>,
<a href="capi3ref.html#sqlite3_exec">sqlite3_exec()</a>, and
<a href="capi3ref.html#sqlite3_close">sqlite3_close()</a>.
More control over the execution of the database engine is provided
using
<a href="capi3ref.html#sqlite3_prepare">sqlite3_prepare()</a>
to compile an SQLite statement into byte code and
<a href="capi3ref.html#sqlite3_prepare">sqlite3_step()</a>
to execute that bytecode.
A family of routines with names beginning with 
<a href="capi3ref.html#sqlite3_column_blob">sqlite3_column_</a>
is used to extract information about the result set of a query.
Many interface functions come in pairs, with both a UTF-8 and
UTF-16 version.  And there is a collection of routines
used to implement user-defined SQL functions and user-defined
text collating sequences.
</p>


<h4>2.1 Opening and closing a database</h4>
︙︙
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represented in UTF-8 and will be ephemeral - it could disappear on
the next call to any SQLite API function.  sqlite3_errmsg16() works like
sqlite3_errmsg() except that it returns the error message represented
as UTF-16 in host native byte order.
</p>

<p>
The error codes for SQLite version 3 are unchanged from version2.
They are as follows:
</p>

<blockquote><pre>
#define SQLITE_OK           0   /* Successful result */
#define SQLITE_ERROR        1   /* SQL error or missing database */
#define SQLITE_INTERNAL     2   /* An internal logic error in SQLite */








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represented in UTF-8 and will be ephemeral - it could disappear on
the next call to any SQLite API function.  sqlite3_errmsg16() works like
sqlite3_errmsg() except that it returns the error message represented
as UTF-16 in host native byte order.
</p>

<p>
The error codes for SQLite version 3 are unchanged from version 2.
They are as follows:
</p>

<blockquote><pre>
#define SQLITE_OK           0   /* Successful result */
#define SQLITE_ERROR        1   /* SQL error or missing database */
#define SQLITE_INTERNAL     2   /* An internal logic error in SQLite */
︙︙